zprostedkovávaly
The word "zprostředkovávaly" is the past tense plural imperfective form of the Czech verb "zprostředkovat." This verb generally translates to "to mediate," "to facilitate," "to arrange," or "to act as an intermediary." Therefore, "zprostředkovávaly" describes actions performed by multiple subjects in the past that involved mediating, facilitating, or arranging something.
The imperfective aspect of the verb suggests an ongoing, repeated, or unfinished action in the past. So,
The grammatical form "zprostředkovávaly" specifically refers to a feminine or neuter plural subject or a mixed-gender